A quasi-linear irreducibility test in K[[x]][y]
We provide an irreducibility test in the ring K [ [ x ] ] [ y ] whose complexity is quasi-linear with respect to the discriminant valuation, assuming the input polynomial F is square-free and K is a perfect field of characteristic not dividing deg ( F ) . The algorithm uses the theory of approximate...
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| Published in: | Computational complexity Vol. 31; no. 1 |
|---|---|
| Main Authors: | , |
| Format: | Journal Article |
| Language: | English |
| Published: |
Cham
Springer International Publishing
01.06.2022
Springer Nature B.V Springer Verlag |
| Subjects: | |
| ISSN: | 1016-3328, 1420-8954 |
| Online Access: | Get full text |
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| Summary: | We provide an irreducibility test in the ring
K
[
[
x
]
]
[
y
]
whose complexity is quasi-linear with respect to the discriminant valuation, assuming the input polynomial
F
is square-free and
K
is a perfect field of characteristic not dividing
deg
(
F
)
. The algorithm uses the theory of approximate roots and may be seen as a generalisation of Abhyankar's irreducibility criterion to the case of non-algebraically closed residue fields. |
|---|---|
| Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 |
| ISSN: | 1016-3328 1420-8954 |
| DOI: | 10.1007/s00037-022-00221-w |